Improvement in watches



c. SPRINGER. Watch Dust-Cap.

Patented May. 12, 1868.

7 w. R W 1 N. FEL'ERS, I'Mto-Lithographar. Washingtan D. C.

- TO ALL IT MAY CONCERN! @initrhgtetraietmt @ffirr.

' Letters Patent 1V6. 77,848, dated May 12. 1868.

' IMPROVEMENT IN WATCHES.

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- Be it known that I, 'Qna'xnias SPnINGEn, of N ew- Castle, in .the county of Lawrence, and State ot Peunsyl; vania, have invented a new and useful Improvement in Watchesgf and I- dohereby declare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to'tnalre and use the same, reference heing had to the accompanying drawings forming part of this specification;

The present inhention'consists in applying about and around the standing collar, surrounding the windin garbor or centre-square which moves the hands, or both of a watch-movement, fol-instance, of that class known as the Americanfl an adjustable-grooved collar, baring a suitable packing-medium to form a tight and close joint, when the watch is shut, with the case. thereof, and thus exclude or 'prevent the entrance of dirt to the "interior-.01 running-mechanism 0t the movement. 4

In the accompanying plate of drawings my improvements in watches are illustrated-s c Figure 1 being a view of a watchwith its back cover open, exposing the backplate', Figures 2, 3, 4,5, 6, Land 8, detail views of the packingwollar, showing difl'erent forms. A,in the drawings, represents the'windiug-post of a watch, projecting fromthe back-plate Bto the case, and there surrounded by astationary collar or-cup, G, fixed to the plate B. D is a collar, arranged to fit tightly over the outside of the cup 0. I i.

This collar Dis grooved around its -'upp erside, and in such groove is inserted a leather, cloth, or other packing-ring or washer, a, suitable to pack and form a close and tight joint to the entrance of dirt around the winding-post cup and the'back-cover, when such cover is closed. i

A packing-ring or collar, similar to that above described, may be also used upoh and around the centre- 1 square, which carries the hands, if so desired.

I claim as new,.and desire'to-secure by Letters Patent The adjustable collar D, containing the packing in the annular recess a, in combination with the back-plate B, cap C, and post A, of an ordinary watch, as .herein described, for the purpose specified.

CHARLES SPRINGER. Witnesses: 1 1

DANIEL Lessons, Jno. B. Rsmnomrr. 

